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3.
FEATURES
1.
The overhead valve design offers a compactness, light weight and ideal combustion charastristics
2.
The vibration free design with the twin balancer system and lighter reciprocating parts.
3.
Such
parts
as the large capacity muffler, dual element air cleaner, helical
type
balancer gear
with extralong teeth and the blower housing and muffler cover made
of
resin laminated
"DAMPING
SHEET"
reduce noise
to
a minimum.
resulting in more power from less fuel
and
prolonged engine life.
4.
The automatic decompression system offers easy, dependable starting.
5.
The muffler
and
carburetor are located on opposite sides, making the arrangements for cooling
air flow
much
easier
in
the design of power equipment.
4.
GENERAL DESCRIPTION
OF
ENGINE
COMPONENTS
4-1
CYLINDER
AND CRANKCASE
The cylinder and crankcase
is
single piece
aluminum diecasting. The cylinder liner, made
of special cast iron, is molded into the aluminum
casting.
The crankcase has a mounting surface on the
output shaft side, where the main bearing cover
is
attached. (See Fig.
1.)
Fig.
1
4-2
MAIN
BEARING COVER
The main bearing cover
is
an aluminum
diecasting, which is mounted on the output shaft
side of the crankcase.
Remove the main bearing cover to inspect inside
of the engine.
Pilots and bosses are machined on the cover
for
direct
mounting
of
the engine onto such
machines as generators and pumps.
Oil
gauge (fillers) are on both
sides
of
the cover
for
easy maintenance.
fig.
2
-6-